The first computer I owned was a Memotech MTX512 with FDX (twin 5.25″ floppy drive!) and dot matrix printer.

The MTX512 was just the keyboard unit, but it was much more than it appears to be – it contained a motherboard with a whole 64KB (yes, kilobytes) of RAM, Z80A processor running at 4MHz (four megahertz), onboard BASIC interpreter, and a bunch of I/O options.